Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
[crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade natates Cavalier-Smith, 2021
Clade photaria Cavalier-Smith, 2021
Clade eucorta Cavalier-Smith, 2021
Superkingdom Corticata Lankester, 1878 - corticates
Kingdom Chromista Caval.-Sm. (1981) - chromists
Subkingdom Harosa Cavalier-Smith, 2010
[crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
Infrakingdom Halvaria Cavalier-Smith, 2010
Superphylum Alveolata Cavalier-Smith, 1991
Phylum Ciliophora Doflein, 1901 - ciliates
Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
Class Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans
Subclass Apostomatia Chatton & Lwoff, 1928
Order Apostomatidaᵀ Chatton & Lwoff, 1928
Family Foettingeriidae Chatton, 1911
01 ?Genus Jeppsia Corliss, 1960
02 ?Genus Kofoidella Cépède, 1910
03 ?Genus Perezella Cépède, 1910
04 Genus Calospira Chatton & Lwoff, 1935
05 Genus Foettingeriaᵀ Caullery & Mesnil, 1903
06.1 Genus Gymnodinioides Minkiewicz, 1912
06.2 Genus Hyalospira Miyashita, 1933
07 Genus Hyalophysa Bradbury, 1966
08 Genus Metaphrya Ikeda, 1917
09 Genus Ophiuraespira Chatton & Lwoff, 1930
10 Genus Pericaryon Chatton, 1911
11 Genus Phoretophrya A. Chatton & M. Lwoff, 1930
12 Genus Phtorophrya A. Chatton & M. Lwoff, 1930
13 Genus Polyspira Minkiewicz, 1912
14 Genus Spirophrya Chatton & Lwoff, 1924
15 Genus Synophrya Chatton & Lwoff, 1926
16 Genus Terebrospira Debaisieux, 1960
17 Genus Traumatiophtora Chatton & Lwoff, 1931
18 Genus Vampyrophrya Chatton & Lwoff, 1931
19 Genus "Rosea" de Puytorac, in Corliss, 1979, nom. nud.